[Freeswitch-users] Registration to FreeSWITCH through multiple proxy problem

[Jurijs Ivolga]

Hi,

I have similar set-up and it works perfectly, but I'm using statefull
Kamailio. Check path module of Kamailio, it might help you.

With kind regards,

Jurijs

On Sun, Jul 17, 2016 at 11:55 AM, Dmitry Saratsky <simpot at simpot.com> wrote:

> Hi,
>
>
>
> I have a scenario, where I need to register to freeswitch through 2 or
> more stateless forwarding kamailio proxies.
>
>
>
> <User> => <Proxy1> => <Proxy2> => <FreeSWITCH>
>
>
>
> Registration packet which comes to freeswitch have 3 VIA Headers (please
> see below):
>
>
>
> REGISTER sip:146.148.54.153 SIP/2.0
>
> Via: SIP/2.0/TCP 159.203.230.115:5060
> ;branch=z9hG4bKea26.3936c0f1c658d2da02a7c46a86186077.0;i=1;rport
>
> Via: SIP/2.0/TCP 188.166.22.58:5060
> ;received=188.166.22.58;branch=z9hG4bKea26.98aaf5f1397dccdf6f103ae4150d3ce0.0;i=14;rport=36525
>
> Via: SIP/2.0/TCP 216.72.41.53:63675
> ;branch=z9hG4bK-524287-1---e991c17828928028
>
> Max-Forwards: 68
>
> Contact: <sip:219 at 216.72.41.53:63675
> ;rinstance=e6186ad594e06aa9;transport=tcp>
>
> To: "219"<sip:219 at 146.148.54.153>
>
> From: "219"<sip:219 at 146.148.54.153>;tag=8c8fc855
>
> Call-ID: NTE1OWIwNjYyODg0YTNiNDVkZDZkNjQxMjlhM2IxYzE
>
> CSeq: 1 REGISTER
>
> Allow: INVITE, ACK, CANCEL, BYE, REFER, INFO, NOTIFY, OPTIONS, UPDATE,
> PRACK, MESSAGE, SUBSCRIBE
>
> User-Agent: Bria iOS release 3.6.5 stamp 34728
>
> Content-Length: 0
>
> Expires: 120
>
> P-hint: outbound
>
> P-hint: outbound
>
>
>
> User register to freeswitch successfully, however back calling to end-user
> is impossible bcz it is not going to reach end-phone using VIA haeder from
> REGISTER.
>
>
>
> If I use aggressive-nat: freeswitch send invite calls to end-user to
> proxy2, which have then no idea where where to send the call (no route
> haeder in invite from freeswitch)
>
> If I do not use aggressive-nat – freeswitch sends it’s invite directly to
> end-user phone(((
>
>
>
> In this example I’m using SIP over TCP, however the same is happened over
> UDP…
>
>
>
> So, the question is how to register correctly to FS and preserve all VIA
> headers with fs_nat in contact db or some other way, so I could reach the
> end-user phone in same patch it is registering?
>
>
>
> Thanks a lot,
>
> Dmitry.
>
>
>
> _________________________________________________________________________
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